200925091 九、發明說明： 【發明所屬之技術領域】 發明領域 本發明是有關於一種可將一片材以一預定量接著一預 5定量的方式間歇地饋送至一加工機’例如一壓製裝置等之 片材饋送裝置，更詳言之，是有關於一種適用於饋送薄片 材之片材饋送裝置。 C先前技術3 Φ 發明背景 10 一種新技術，例如在汽車工業發展油電複合車等與全 球環境問題及利用該技術生產的產品已在個別產業積極地 發展。汽車的油電複合技術是基於引擎與馬達的結合，且 其中一技術是發展更有效率的馬達。當此種馬達中所使用 的馬達磁心是將被一壓製裝置衝壓的薄片堆疊成數層所製 15 成，基於改善效率的觀點，習知已發現宜製成可堆疊且更 薄的薄片。 Φ 於此情況，近年來使用作為馬達磁心的片材即有一傾 向，是以壓製裝置衝壓的更薄，舉例來說，製成具有0.25mm * 厚度的矽鋼板，取代以前所使用具有0.5mm厚度的矽鋼 " 2〇 板。據此，習知對可符合此情況的壓製裝置已有研究’所 以需要發展可將一片材饋送至壓製裝置的片材饋送裝置， 以適用於薄片材的饋送之裝置。 傳統上，習用是以具有一對滚輪夾制且輸送一材料之 滾輪饋送裝置，作為片材饋送装置。 5 200925091 一些滾輪饋送裝置的類型是包括u動裝置連續 且旋轉驅動之主滾輪，及一透過一片材被該主滾輪驅動之 次滚輪（舉例來說，見美國專利號碼5,720,421 )。 並且^滚輪饋送裝置的類型中，使用扇形滾輪作 5 為一對滾輪，且一材料是藉* 疋精由襬動及旋轉驅動該等滾輪來 輸送（舉例來說，見JP-U-63-i7QQ39>。 並且，習用有-種片材饋送裝置，包括片材導引裝置， 其導引片材以當片材饋送時限制片材弯曲，且使用該片材 導引裝置，來導引片材以-片材輸送方向至一對滚輪的上 10游及下游（舉例來說，見JP_U-63-170039 )。 由於上述片材饋送裝置可將—片材間歇地饋送至一加 工機，例如-壓製裝置等，而須重覆停止及镇送，該片材 的著曲仍可能產生於片材被饋送至加工機之路徑中間。並 且，由於以一對滚輪於其間夾制片材需有充分的夾制力可 15 以摩擦力饋送片材’因此薄片的片材需捲繞於一滾筒上。 這樣將片材彎曲及捲繞於滾筒上會導致減低該片材饋送裝 置的饋送長度之準確度，而造成該加工機的加工之障礙。 於JP-U-63-170039揭露的相關技藝中，該片材導引裝置 可進行片材以片材輸送方向觀之至該對滾輪的上游及下游 2〇的導引工作，以限制片材的彎曲’但要避免片材彎曲及繞 於一滾筒上的捲曲是相當困難的，此是由於需在該片材導 引裝置與該等滾輪之間設置很寬的空間。 【明内 發明概要 200925091 本發明的目的在於提供一種片材饋送裝置，可解決上 述問題，且可將一片材順暢地饋送至一加工機，而不產生 片材的彎曲及繞於一滾筒上的捲曲。 為解決上述問題，根據本發明的片材饋送裝置，包括 5 —對滾輪，其共同夾制及輸送一片材，及一片材導引裝置， 該片材導引裝置包含一第一導引構件及一第二導引構件， ' 其沿一片材輸送路徑延伸，且構形成供一片材通過該等導 ' 引構件之間，該對滾輪其中一者具有多數環周溝槽，其配 〇 置於一片材饋送表面的兩軸端之間且相互以軸向方向間 10 隔，該第一導引構件包含導引部，其通過該多數環周溝槽 且在該對滾輪之間以一片材輸送方向自一上游侧連續延伸 至一下游侧。 於本發明中，該第一導引構件的導引部通過該多數環 周溝槽且在該對滾輪之間以一片材輸送方向自一上游側連 15 續延伸至一下游側，且該等導引部當一片材通過該對滾輪 之間時可導引該片材。據此，即使當片材是薄的時，片材 ® 亦難以產生彎曲及繞一滾筒捲曲，且如此可將該片材以高 準確度順暢地饋送。 _ 較佳的構造中，該對滚輪的另一者，其與該對滾輪的 20 其中一者共同作動，亦具有多數環周溝槽，其配置於一片 材饋送表面於一軸向方向的兩軸端之間且相互以轴向方向 間隔，該第二導引構件包含導引部，其通過在該對滾輪的 另一者上之該多數環周溝槽，且以一片材輸送方向自一上 游側連續延伸至一下游侧，且該第一導引構件的導引部與 7 200925091 該第二導引構件的導引部是以相對方式配置，以使一片材 可通過該第一導引構件的導引部與該第二導引構件的導引 部之間。以此構造，該第一導引構件的導引部與該第二導 引構件的導引部即可導引一片材，以可達到穩定地饋送一 5片材。 圖式簡單說明 第1圖是顯示根據本發明的實施例1的片材饋送裝置之 轴向橫剖圖； 第2圖是於第1圖箭頭方向II-II所觀之橫剖圖； 10 第3A及3B圖是顯示當使用根據實施例2的一第一導引 構件所達到顯著功效之示圖； 第4圖是顯示根據實施例2的一對滾輪及第一與第二導 引構件的構造之示®; 第5圖是以第4圖線V-V所剖之橫剖圖； 15 第6圖是顯示根據實施例3的一次滾輪與一第一導引構 件的構造之不圖， 第7圖是顯示根據實施例4的一次滚輪與一第一導引構 件的構造之示圖；及 第8圖是顯示習知技藝的構造且與第5圖相同之示圖。 20 【實施方式】 較佳實施例之詳細說明 (實施例1) 根據實施例1，如第1及2圖所示，一種片材饋送裝置1 包括一對滾輪及片材導引裝置（將詳述於後），該對滚輪即 200925091 一被-驅動裝置2’例如伺服馬達或類似者所驅動之 滾輪5,及-透過-片材3被該主滚輪5驅動之下方次滾輪6。 將該主滾輪5與該次滾輪6容置於内之殼體包含— 第一殼體部9 ’其具有可切該主滾輪5的壁部，及 殼體部1G，其安裝於該第—殼體物支撐祕袞輪6。: =袞輪5的―端5b連接於該驅動裝置2的—驅動軸4， ❹ 15 Ο 轴4疋以其_-財餐7可_地支胁《-殼體^ 9上。該主滚輪5的另—端5咖其_-抽承構件8可^ 地支撐於料—M飢。麵隸㈣__分別以 其間的軸承構件U，12可旋轉地支撐於該第二殼體_上。 該片材饋送裝置1固定於—加工機（圖中未顯示），例 如壓製裝置等，且該驅動裝置2間歇地旋轉該主滾輪$， 以藉該主滾輪5_次滾輪6輪送所夾獅諸3,以將 以一狀量接著-狀量饋送至該加工機。 除此之外，其中以一對滚輪夾制及輸送-片材的類型 之片材饋送裝置，通常設置有—機構，可與—壓製裝置的 作動同步作動’以在壓製卫作之前，㈣該對滾輪所施加 w材m制力’且設置有—機構，可根據片材的厚戶 20 造。 調整該對滚輪之間的間隙。這些機構可適意地採用習用ς 造。 該片材導引裝置包含—第一導引構件15及一第二導引 構件16，其固定於該等殼體部9，1〇。 冑51#件16包含—位於該兩滾輪56從在第2圖 中箭頭續制片材輸送裝置峨之的上狀躲，以及一 9 200925091 位於其下游之部位，且一空間s是形成於這些部位與該主滾 輪5之間。如第1圖所示，該主滚輪5的兩端5a，5b是形成具有 較一外環周面為小的直徑，該外環周面是與該片材3銜接以 饋送該片材3之一片材饋送表面5’，且該第二導引構件16包 5 含導引部161)，16〇，其通過相鄰於該兩端5&,51)的環周面之位 置，且自該兩滚輪5,6片材輸送方向上的上游側連續延伸至 其下游側。 設置於該次滾輪6的一外環周面上，亦即與該片材3銜 接以饋送該片材3之一片材饋送表面6’，是多數環周溝槽 10 13，其以該片材饋送表面的軸向方向相互間隔，該片材饋 送表面6’的小徑部14是設置於設有該等環周溝槽13之位 置。 該第一導引構件15包含導引部15a，其通過個別的環周 溝槽13，且在該兩滾輪5,6之間自以該片材輸送方向上的上 15 游侧連續延伸至下游侧。並且，該第一導引構件15包含導 引部15b，15c，其位於該次滾輪6的兩端6a，6b鄰近處。該等 導引部15a，15b是固定於該第二殼體部10的一壁部，該第二 殼體部10是以其間的軸承構件11，12支撐該次滚輪6的兩端 6a,6b，該等導引部是以片材輸送方向自該兩滚輪5,6的一上 20 游側連續延伸至一下游側，且相對於該第二導引構件16的 導引部16b,16c，以使該片材3可通過該導引部15a,15b及該 等導引部16a，16b。 該多數導引部15a，15b，15c可分別包括固定於該等殼體 部9，10的分離構件，且可一體連接於該兩滾輪5,6的上游及 200925091 下游位置。 如上所述，根據實施例1，由於設置具有該等導引部之 該第一導引構件15，因此可導引及順暢地饋送該片材3，而 不致產生該片材3的彎曲及折曲。 5 根據實施例1，由於該第一導引構件15包含三導引部 15a，因此可順暢地饋送各種不同寬度的片材。亦即，當一 • 片材具有較小寬度時，如第3A圖所示，至少一導引部15a . 可導引一片材，而當一片材具有較大寬度時，如第3B圖所 © 示，可以多數導引部15a導引一片材以可順暢饋送該片材。 10 除此之外，儘管該等環周槽溝13及該等導引部15a是設 置有多數個以可順暢地饋送各種不同寬度的片材，其可根 據要輸送的片材寬度來適意地選擇特定溝槽數量。並且， 不管定位於該兩滾輪5,6端部處的該等導引部 151?，15〇，1613，16(；是否根據情況而省略也無關緊要。在實施例 15 2,3及4中也是一樣。 (實施例2) ® 如第4圖所示的實施例2包括一次滾輪6及一第一導引 構件15，其與實施例1中者相同，該第一導引構件15具有導 引部15a至15c，亦與實施例1者相同。 20 於實施例2中，一主滚輪5A及一第二導引構件16A的構 造與該次滾輪6及該第一導引構件15相同。 亦即，該主滾輪5A的一片材饋送表面5A’設置有多數環 周溝槽13A，其是以一片材饋送表面的軸向方向相互間隔， 且該主滾輪5A的小徑部14A是設置於該等環周溝槽所設置 11 200925091 之位置。該第二導引構件16A包含導引部l6a，其通過個別 的環周溝槽13A’且自以一片材輸送方向的上游側連續延伸 至一下游側，且導引部16b，16c是與實施例1中的導引部 16b，16c相同。該等導引部16a至16c是;)：目對於核第〆導引構 5件15的導引部15a至15c配置，以使一片材3可通過該等導引 部15a至15c與該等導引部16a至16c之間。 由第4及5圖可知’根據實施例2，該第—導引構件15 · 的導引部15a至15c及該第二導引構件16A的導引部16a至 16c可調節一片材通過該兩滾輪之間的兩表面，以可穩定地 0 10 饋送該片材。 反之，於第8圖所示的相關技藝中，導引構件15χ 16χ 不包含任何導引部於一對滾輪之間自以一片材輸送方向的 上游侧連續延伸至一下游側，且在該等導引構件ΐ5χι6χ 與該對滾輪之間形成一空間S，因此會造成片材3的彎曲及 15 繞一滾筒的捲曲。 (實施例3) 於第6圖所示的實施例3中，一次滚輪6Α包含—滾輪軸 ◎ 3〇，其兩端固定於一片材饋送裝置的一殼體，及多數軸承 構件31，其安裝於以該滾輪軸3〇的轴向方向相互間隔的位 20置。間隔件32是設置於該等個別轴承構件31之間。較佳地， 該等軸承構件31是使用深溝軸承。 該等個別轴承構件31的外環體31a的外環周面界定片 材饋送表面。並且，多數環周溝槽13是形成於該等個別軸 承構件31之間的位置，且導引部15a是設置通過該等個別環 12 200925091 周溝槽13且自一片材輸送方向的—上游側連續延伸至一下 游側。第6圖所示的導引部15b，l5e是與實施例1和2中的導引 部15b，15c相同。 根據實施例3，該滾輪軸3〇不需可旋轉地安裝於一殼 5體。亦即，該次滚輪30不會整個與該滾輪軸30—起旋轉， 而該等個別軸承構件31的外環體31a是藉一主滾輪透過一 片材3來轉動，使得可以較小的力來引起轉動而不會產生大 的慣性力。據此，即可使構造簡單且饋送材料更加順暢。 ❹ （實施例4) 1〇 於第7圖所示的實施例4中，一次滾輪6B包含一滾輪軸 4〇及多數滾輪構件41，其是以該滾輪轴4〇的轴向方向上相 互毗鄰的關係設置於該滾輪軸4〇。多數環周溝槽13是形成 於該等個別滾輪構件41之間，且導引部15a是設置通過該等 個別ί衣周溝槽13且自-片材3輸送方向的一上游側連續延 15伸至一下游侧。第7圖中參考標號15b，l5c表示導引部，其是 φ 與實施例1至3中的導引部15b，15c相同。 一般而言，當被輸送的一片材寬度較大時，滚輪的尺 . 彳較大且長度亦變大’且需要進行對此大且長的滚輪之- 片材饋送表面準確地表面加工之麻須工作。以此如實施例4 中所叹置㈣數滾輪構件41之構造，湘在將該等滚輪構 件41女裝於該滾輪轴4〇的狀態時對所有滾輪構件表面加 工，即可輕易且準確地進行表面加工。 並且，當採用實施例4的構造時，藉設計個別滚輪構件 41的形狀，可將次滾輪製造的更輕。 13 200925091 根據實施例3，如第6圖所示的滾輪結構無法被採用作 為主滚輪的結構，但根據實施例4，第7圖所示的滚輪結構 則可被採用作為主滾輪的結構。並且，如第4、6及7圖所示 的滾輪結構可適意地合併且使用於一主滾輪及一次滚輪的 5 結構。舉例來說，可採用第7圖所示的滾輪結構用於輸送一 片材的一對滾輪之各滚輪，可採用第7圖所示的滚輪結構用 於一主滚輪的結構，其可與一具有第6圖所示結構的次滾輪 共同作動，以及可以一具有第7圖所示結構的主滾輪，取代 如第4圖所示根據實施例4的主滚輪5 A。 10 【圖式簡單說明】 第1圖是顯示根據本發明的實施例1的片材饋送裝置之 軸向橫剖圖； 第2圖是於第1圖箭頭方向II-II所觀之橫剖圖； 第3A及3B圖是顯示當使用根據實施例2的一第一導引 15 構件所達到顯著功效之示圖； 第4圖是顯示根據實施例2的一對滚輪及第一與第二導 引構件的構造之示圖； 第5圖是以第4圖線V-V所剖之橫剖圖； 第6圖是顯示根據實施例3的一次滚輪與一第一導引構 20 件的構造之示圖； 第7圖是顯示根據實施例4的一次滾輪與一第一導引構 件的構造之示圖；及 第8圖是顯示習知技藝的構造且與第5圖相同之示圖。 【主要元件符號說明】 200925091 ‘ l·"片材饋送裝置 14,14A…小徑部 2…驅動裝置 15…第一導引構件 3···片材 15aJ5b，15c···導引部 4…驅動轴 16，16A…第二導引構件 5,5A…主滾輪 16a,16b,16c…導引部 515b…兩端 15X，16X…導引構件 5’···片材饋送表面 ❹ 30…滾輪軸 6,6A，6B…次滾輪 3l··.軸祕件 6a，6b…兩端 3 la…外環體 6’···片材饋送表面 32…間隔件 7,8…軸承構件 40…滚輪軸 9…第一殼體部 10…第二殼體部 ^ 11，12…軸承構件 13,13A…溝槽 4l·..滚輪構件 15200925091 IX. OBJECTS OF THE INVENTION: FIELD OF THE INVENTION The present invention relates to an apparatus for intermittently feeding a sheet of material to a processing machine, such as a pressing device, in a predetermined amount and then a pre-5 basis amount. The sheet feeding device, more specifically, relates to a sheet feeding device suitable for feeding a sheet. C Prior Art 3 Φ Background of the Invention 10 A new technology, such as the development of oil-electric hybrid vehicles in the automotive industry, and global environmental problems and products produced using the technology have been actively developed in individual industries. The hybrid technology of a car is based on the combination of an engine and a motor, and one of the technologies is to develop a more efficient motor. When the motor core used in such a motor is formed by stacking sheets punched by a pressing device into several layers, it has been found that it is preferable to form stackable and thinner sheets from the viewpoint of improving efficiency. Φ In this case, in recent years, there has been a tendency to use a sheet as a motor core, which is thinner by a pressing device, for example, a bismuth steel sheet having a thickness of 0.25 mm*, which has a thickness of 0.5 mm as used previously. The 矽Steel " 2 〇 board. Accordingly, it has been conventionally studied for a press device which can conform to this situation. Therefore, there is a need to develop a sheet feeding device which can feed a sheet of material to a pressing device to be applied to a device for feeding a sheet. Conventionally, a roller feeding device having a pair of rollers and conveying a material has been conventionally used as a sheet feeding device. 5 200925091 Some types of roller feed devices are a main roller that includes a continuous and rotational drive of the u-motion device, and a secondary roller that is driven by the main roller through a sheet of material (see, for example, U.S. Patent No. 5,720,421). And in the type of the roller feed device, the fan-shaped roller is used as a pair of rollers, and a material is conveyed by swinging and rotating the rollers (for example, see JP-U-63- i7QQ39> Also, there is a sheet feeding device including a sheet guiding device that guides the sheet to restrict sheet bending when the sheet is fed, and uses the sheet guiding device to guide the sheet The material is conveyed in the direction of the sheet to the upper 10 and downstream of the pair of rollers (for example, see JP_U-63-170039). Since the above sheet feeding device can intermittently feed the sheet to a processing machine, for example - pressing device, etc., which must be repeated and stopped, the sheeting of the sheet may still occur in the middle of the path in which the sheet is fed to the processing machine. Also, since a pair of rollers are used to sandwich the sheet therebetween A sufficient gripping force 15 can feed the sheet with frictional force. Therefore, the sheet of the sheet needs to be wound on a drum. Thus bending and winding the sheet onto the drum causes the feeding length of the sheet feeding device to be reduced. Accuracy, which creates obstacles to the processing of the machine. In the related art disclosed in JP-U-63-170039, the sheet guiding device can guide the sheet to the upstream and downstream directions of the pair of rollers in the sheet conveying direction to restrict the sheet. Bending 'but it is quite difficult to avoid sheet bending and curling around a roller because of the need to provide a wide space between the sheet guiding device and the rollers. 200925091 An object of the present invention is to provide a sheet feeding device which can solve the above problems and can smoothly feed a sheet of material to a processing machine without causing bending of the sheet and curling around a drum. The above problem, the sheet feeding device according to the present invention comprises a pair of rollers, which collectively sandwiches and conveys a sheet, and a sheet guiding device, the sheet guiding device comprising a first guiding member and a second guiding member, 'extending along the sheet conveying path and configured to pass a sheet of material between the guiding members, the pair of rollers having a plurality of circumferential grooves, the fitting Placed on a sheet feeding surface The shaft ends are spaced apart from each other by 10 in the axial direction, and the first guiding member includes a guiding portion passing through the plurality of circumferential grooves and between the pair of rollers in a sheet conveying direction from an upstream side Continuously extending to a downstream side. In the present invention, the guiding portion of the first guiding member extends through the plurality of circumferential grooves and between the pair of rollers in a sheet conveying direction from an upstream side 15 To a downstream side, and the guiding portions can guide the sheet when the sheet passes between the pair of rollers. Accordingly, even when the sheet is thin, the sheet® is hard to be bent and wound. A roller is curled, and the sheet can be smoothly fed with high accuracy. In a preferred configuration, the other of the pair of rollers, which is cooperating with one of the pair of rollers 20, also has a majority a circumferential groove disposed between the two axial ends of the sheet feeding surface in an axial direction and spaced apart from each other in the axial direction, the second guiding member including a guiding portion passing through the pair of rollers The other is the majority of the circumferential groove, and the direction of the sheet conveys one The swim side continuously extends to a downstream side, and the guiding portion of the first guiding member and 7 200925091 the guiding portion of the second guiding member is disposed in a relative manner so that the sheet can pass the first guiding Between the guiding portion of the lead member and the guiding portion of the second guiding member. With this configuration, the guiding portion of the first guiding member and the guiding portion of the second guiding member can guide the sheet to stably feed a sheet of 5 sheets. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an axial cross-sectional view showing a sheet feeding device according to Embodiment 1 of the present invention; Fig. 2 is a cross-sectional view taken in the direction of arrows II-II of Fig. 1; 3A and 3B are diagrams showing significant effects achieved when a first guiding member according to Embodiment 2 is used; FIG. 4 is a view showing a pair of rollers and first and second guiding members according to Embodiment 2. Fig. 5 is a cross-sectional view taken along line VV of Fig. 4; Fig. 6 is a view showing the construction of the primary roller and a first guiding member according to Embodiment 3, No. 7, The figure is a view showing the configuration of a primary roller and a first guiding member according to Embodiment 4; and Fig. 8 is a view showing the configuration of the prior art and the same as Fig. 5. 20 [Embodiment] Detailed Description of Preferred Embodiments (Embodiment 1) According to Embodiment 1, as shown in Figures 1 and 2, a sheet feeding device 1 includes a pair of rollers and a sheet guiding device (to be detailed) As described later, the pair of rollers, that is, 200925091, a roller 5 driven by a driving device 2' such as a servo motor or the like, and a lower roller 6 driven by the main roller 5 are transmitted through the sheet 3. The housing that houses the main roller 5 and the secondary roller 6 includes a first housing portion 9' having a wall portion that can cut the main roller 5, and a housing portion 1G that is mounted to the first portion The housing supports the secret wheel 6. : = The end 5b of the cymbal 5 is connected to the drive shaft 4 of the drive unit 2, and the ❹ 15 Ο shaft 4疋 is supported by the _--------- The other end 5 of the main roller 5 can be supported by the material-M hunger. The face members (4) __ are rotatably supported on the second housing_ with the bearing members U, 12 therebetween. The sheet feeding device 1 is fixed to a processing machine (not shown), such as a pressing device, and the like, and the driving device 2 intermittently rotates the main roller $ to be carried by the main roller 5_second roller 6 The lions 3 are fed to the processing machine in a quantity-like amount. In addition, a sheet feeding device of a type in which a pair of rollers are sandwiched and conveyed-sheet is usually provided with a mechanism that can be actuated in synchronization with the actuation of the pressing device to (4) The w material is applied to the roller, and the mechanism is set to be based on the thick member of the sheet. Adjust the gap between the pair of rollers. These institutions can use customary construction as appropriate. The sheet guiding device comprises a first guiding member 15 and a second guiding member 16, which are fixed to the housing portions 9, 1 . The 胄51# member 16 includes - a position in which the two rollers 56 are slid from the arrow conveying device in Fig. 2, and a portion where a 9 200925091 is located downstream, and a space s is formed in these The portion is between the main roller 5. As shown in Fig. 1, the both ends 5a, 5b of the main roller 5 are formed to have a smaller diameter than the outer circumferential surface of the outer ring, and the outer circumferential surface of the outer ring is engaged with the sheet 3 to feed the sheet 3. a sheet feeding surface 5', and the second guiding member 16 includes a guiding portion 161), 16〇, which passes the position of the circumferential surface adjacent to the both ends 5&, 51), and The upstream side of the two rollers 5, 6 in the sheet conveying direction continuously extends to the downstream side thereof. Provided on an outer circumferential surface of the secondary roller 6, that is, engaged with the sheet 3 to feed one of the sheet feeding surfaces 6' of the sheet 3, which is a plurality of circumferential grooves 1013 The axial direction of the material feeding surfaces is spaced apart from each other, and the small diameter portion 14 of the sheet feeding surface 6' is disposed at a position where the circumferential grooves 13 are provided. The first guiding member 15 includes a guiding portion 15a that passes through the individual circumferential groove 13 and continuously extends from the upper 15 side to the downstream side in the sheet conveying direction between the two rollers 5, 6. side. Further, the first guiding member 15 includes guiding portions 15b, 15c located adjacent to both ends 6a, 6b of the secondary roller 6. The guiding portions 15a, 15b are fixed to the wall portion of the second housing portion 10, and the second housing portion 10 supports the ends 6a, 6b of the secondary roller 6 with the bearing members 11, 12 therebetween. The guiding portions continuously extend from a top 20 side of the two rollers 5, 6 to a downstream side in a sheet conveying direction, and with respect to the guiding portions 16b, 16c of the second guiding member 16, The sheet 3 can pass through the guiding portions 15a, 15b and the guiding portions 16a, 16b. The plurality of guiding portions 15a, 15b, 15c may respectively include separate members fixed to the housing portions 9, 10, and may be integrally connected upstream of the two rollers 5, 6 and downstream of 200925091. As described above, according to Embodiment 1, since the first guiding member 15 having the guiding portions is provided, the sheet 3 can be guided and smoothly fed without causing bending and folding of the sheet 3. song. According to Embodiment 1, since the first guiding member 15 includes the three guiding portions 15a, sheets of various widths can be smoothly fed. That is, when a sheet has a small width, as shown in Fig. 3A, at least one guiding portion 15a can guide a sheet, and when the sheet has a large width, as in Fig. 3B As shown, a plurality of guides 15a can guide a sheet to smoothly feed the sheet. In addition to this, although the circumferential groove 13 and the guide portions 15a are provided with a plurality of sheets for smoothly feeding sheets of different widths, they may be appropriately adapted depending on the width of the sheet to be conveyed. Select a specific number of grooves. Moreover, regardless of the guiding portions 151?, 15?, 1613, 16 positioned at the ends of the two rollers 5, 6, it is irrelevant whether or not it is omitted depending on the situation. In Embodiments 15 2, 3 and 4 The same applies to the embodiment (the second embodiment). The lead portions 15a to 15c are also the same as those of the first embodiment. 20 In the second embodiment, the configuration of a main roller 5A and a second guiding member 16A is the same as that of the secondary roller 6 and the first guiding member 15. That is, the sheet feeding surface 5A' of the main roller 5A is provided with a plurality of circumferential grooves 13A which are spaced apart from each other in the axial direction of the sheet feeding surface, and the small diameter portion 14A of the main roller 5A is The second guiding member 16A is disposed at a position where the circumferential groove is disposed 11 200925091. The second guiding member 16A includes a guiding portion 16a that passes through the individual circumferential groove 13A' and is continuous from the upstream side in the sheet conveying direction. It extends to a downstream side, and the guiding portions 16b, 16c are the same as the guiding portions 16b, 16c in the embodiment 1. The guiding portions 16 a to 16c are;): the guide portions 15a to 15c of the core second guiding member 15 are disposed so that the sheet member 3 can pass through the guiding portions 15a to 15c and the guiding portions 16a. Between 16c. It can be seen from Figures 4 and 5 that, according to Embodiment 2, the guiding portions 15a to 15c of the first guiding member 15 and the guiding portions 16a to 16c of the second guiding member 16A can adjust the sheet through the The two surfaces between the two rollers feed the sheet stably at 0 10 . On the other hand, in the related art shown in FIG. 8, the guiding member 15χ 16χ does not include any guiding portion continuously extending from the upstream side in the sheet conveying direction to the downstream side between the pair of rollers, and The guiding member ΐ5χι6χ forms a space S with the pair of rollers, thus causing the bending of the sheet 3 and the curling of 15 around a roller. (Embodiment 3) In Embodiment 3 shown in Fig. 6, the primary roller 6A includes a roller shaft ◎ 3〇, both ends of which are fixed to a casing of the sheet feeding device, and a plurality of bearing members 31, Mounted at a position 20 spaced apart from each other in the axial direction of the roller shaft 3〇. The spacer 32 is disposed between the individual bearing members 31. Preferably, the bearing members 31 are deep groove bearings. The outer circumferential surface of the outer ring body 31a of the individual bearing members 31 defines a sheet feeding surface. Further, a plurality of circumferential grooves 13 are formed at positions between the individual bearing members 31, and the guiding portions 15a are provided through the individual rings 12 200925091 circumferential grooves 13 and from the sheet conveying direction - upstream The side extends continuously to a downstream side. The guide portions 15b, 15e shown in Fig. 6 are the same as the guide portions 15b, 15c in the first and second embodiments. According to Embodiment 3, the roller shaft 3〇 does not need to be rotatably mounted to a casing 5 body. That is, the roller 30 does not rotate integrally with the roller shaft 30, and the outer ring body 31a of the individual bearing members 31 is rotated by the main roller through the sheet 3, so that a small force can be used. To cause rotation without generating large inertia forces. According to this, the structure can be made simple and the feeding material can be made smoother. ❹ (Embodiment 4) In the embodiment 4 shown in Fig. 7, the primary roller 6B includes a roller shaft 4〇 and a plurality of roller members 41 which are adjacent to each other in the axial direction of the roller shaft 4〇. The relationship is set to the roller shaft 4〇. A plurality of circumferential grooves 13 are formed between the individual roller members 41, and the guiding portion 15a is provided through the individual outer circumferential grooves 13 and continuously extends from the upstream side of the sheet-sheet 3 conveying direction. Stretched to a downstream side. Reference numerals 15b, 15c in Fig. 7 denote guide portions which are the same as the guide portions 15b, 15c in the first to third embodiments. In general, when the width of the conveyed sheet is large, the size of the roller is large and the length is also increased, and it is necessary to perform the surface processing of the large and long roller. Mason work. Thus, as in the configuration of the (four) number of the roller members 41 in the fourth embodiment, the surface of all the roller members can be easily and accurately processed when the roller members 41 are worn in the state of the roller shaft 4〇. Surface processing. Also, when the configuration of Embodiment 4 is employed, the secondary roller can be made lighter by designing the shape of the individual roller members 41. 13 200925091 According to Embodiment 3, the roller structure as shown in Fig. 6 cannot be employed as the structure of the main roller, but according to Embodiment 4, the roller structure shown in Fig. 7 can be adopted as the structure of the main roller. Further, the roller structure as shown in Figs. 4, 6 and 7 can be suitably combined and used in the structure of a main roller and a primary roller. For example, the roller structure shown in FIG. 7 can be used for conveying the rollers of a pair of rollers of the sheet material, and the roller structure shown in FIG. 7 can be used for the structure of a main roller, which can be combined with The secondary roller having the structure shown in Fig. 6 operates in cooperation, and a main roller having the structure shown in Fig. 7 can be substituted for the main roller 5 A according to the fourth embodiment as shown in Fig. 4. 10] BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an axial cross-sectional view showing a sheet feeding device according to Embodiment 1 of the present invention; and Fig. 2 is a cross-sectional view taken in the direction of arrows II-II of Fig. 1 3A and 3B are diagrams showing significant effects achieved when a first guide 15 member according to Embodiment 2 is used; FIG. 4 is a view showing a pair of rollers and first and second guides according to Embodiment 2. FIG. 5 is a cross-sectional view taken along line VV of FIG. 4; FIG. 6 is a view showing the construction of a primary roller and a first guiding member according to Embodiment 3. Fig. 7 is a view showing the configuration of a primary roller and a first guiding member according to Embodiment 4; and Fig. 8 is a view showing the configuration of the prior art and the same as Fig. 5. [Description of main component symbols] 200925091 ' l·" Sheet feeding device 14, 14A... Small diameter portion 2... Drive device 15... First guiding member 3··· Sheet 15aJ5b, 15c··· Guide portion 4 ... drive shaft 16, 16A... second guide member 5, 5A... main roller 16a, 16b, 16c... guide portion 515b... both ends 15X, 16X... guide member 5'... sheet feeding surface 30... Roller shaft 6,6A,6B...second roller 3l··. shaft member 6a, 6b... both ends 3 la... outer ring body 6'···sheet feeding surface 32... spacers 7,8...bearing member 40... Roller shaft 9...first housing portion 10...second housing portion ^11,12...bearing member 13,13A...groove 4l·..roll member 15